EXHAUST QUESTIONS ANSWERED BY AN EXHAUST TECH

[Moses]

G'day mate,

i have a Turbo Diesel Jeep XJ, and was hopeing to put a 3" exhaust on,
what would something like this cost and what gains would i have

Cheers
Moses

[crankycruiser]

i just got on of the new common rail turbo diesel tritions and it has sum sorta cat straight off the back of the turbo..

is it a cat if not wats it do??

[Josh n Kat]

i think exhaust fix may have gone on holidays for just the moment..... ah well, its all good!

[EXHAUSTFIX]

hey exhaust doc,
got a turbo diesel 4.2 patrol with a high mount turbo. got my 3 inch exhaust fitted up today which was all good. however i was hoping for it to be all the way up to the turbo but instead they stuck with the standard turbo dynamics dump pipe which from memory is around 2 3/4 inch diameter, then it goes out to 3 from there. they told me they originally had planned on doing it all the way up there but decided it wouldn't make really much of a benifit cause they would have to squash the pipe for it to fit which would restrict.

what do you think? i'm willing to find someone else to do the dump pipe if you think its worth the effort. cheers, thanks for your time
josh

depends on the outlet size of the turbo
if it anly gas about a 2.5" hole it will be ok as u will develop good gas speed if it has a 3" hole it will be ristricted

[EXHAUSTFIX]

G,Day I am informed that a petrol 4 Runner V6 will benifit from Hurricane extractors and 2" into single 2.5" sports exhaust. Then once inlet mods are made a half decent power increase will result.

On the exhaust side do you see anything wrong with the setup above.

Cheers

no not at ell that is perfect for that 4b

[EXHAUSTFIX]

ok. final question i think. runing a single turbo on an 8, will putting it on the left hand bank with a pipe joining to the right hand bank screw the valves to bad? alot like the kits they make eg. capa ls1 kit. except with it lined up along side the cylinder bank.

not as far as i know i have never herd of that causing a problem
a lot of turbos are set up like that

[EXHAUSTFIX]

G'day mate,

i have a Turbo Diesel Jeep XJ, and was hopeing to put a 3" exhaust on,
what would something like this cost and what gains would i have

Cheers
Moses

cost about #850
good gains all round
more power less heat in turbo and quicker spool up time

[EXHAUSTFIX]

i just got on of the new common rail turbo diesel tritions and it has sum sorta cat straight off the back of the turbo..

is it a cat if not wats it do??

yes it is a cat and it is not legal to move the position of a cat all you can do is get a large dump with a better cat in it

[EXHAUSTFIX]

i think exhaust fix may have gone on holidays for just the moment..... ah well, its all good!

i did but back again sorry for not answeering questions

[Struth]

Thanks kindly

[Boopa]

Hey Zorstech!,

I've just picked up a new Mazda 6 MPS, the turbo 2.3 jobbie.

What are your thoughts on a good cat back (for now) system for these...have you done any work on these before? The system splits
I think before the diff, then into two bid ass mufflers down back.

Wouldn't want too much of a racket, particularly not droney on the
highway...but I guess there'd be good gains to be had like with most
turbo vehicles?

Or should I just bight the bullet and go turbo back straight off the bat?

Cheers...look forward to your advice mate.

hey...wadda bout me! ...it is a 4WD after all!

[hilux_bondy_007]

hey mate.. puttin 1uzfe in my hilux just wondering wat would be best legal exhaust for me?? live in qld

[blade828]

Hi
I have a 4.5L patrol on dual fuel, what exhaust would i need to get it sounding a little better but not too much droning and a little extra performance? Would extractors have any benifit? How much would a system cost? thanks!

[Allo97]

Hi,i have a 2004 3.4v6 hilux, was wondering if you have seen anyone upgrade the exhaust system and if so was it worth it for power.

[Z()LTAN]

howdy, is it possible to run a 1HZ turbo intercooled high psi, with a 3" into almost 4" stacks? behind the cab, no mufflers

[endo]

I'm picking up a 1995 3l TD surf on Tuesday.

Has stock exhaust on it atm..

Im wondering what the costs will be to wack a decent system on it... Not overly fussed about the noise, I've got extractors on my hilux now that are loud.

Probably run stock boost on it now (may change it later) so would be after a flexible option as far as size goes.

The surf guys seem to run straight through with a hotdog on the end..

Not sure what my options are

Oh... and since you are in croydon, you'll be doing the work (Bloke here at work has given you rave reviews as well)

[CWBYUP]

Currently building a 1.3l zook and its time to start to think about the exhaust.

Just wondering what size pipe to use ? I will be fitting extractors as well.

Its more a trailer queen that DD so noice dosent realy bother me that much, I am looking for the biggest power gains possible.

Thanks in advance, Nick

[EXHAUSTFIX]

G,Day I am informed that a petrol 4 Runner V6 will benifit from Hurricane extractors and 2" into single 2.5" sports exhaust. Then once inlet mods are made a half decent power increase will result.

On the exhaust side do you see anything wrong with the setup above.

Cheers

absolutly not this is perfect but rember to use a large srtaight throuhg muffler in the front ad another 1 in the rear or it will be to loud

[EXHAUSTFIX]

ok. final question i think. runing a single turbo on an 8, will putting it on the left hand bank with a pipe joining to the right hand bank screw the valves to bad? alot like the kits they make eg. capa ls1 kit. except with it lined up along side the cylinder bank.

this will not hurt valves rember you are now running forced air not normaly asperated so you have higher pressure to get rid of exhaust gasses

[EXHAUSTFIX]

hey mate.. puttin 1uzfe in my hilux just wondering wat would be best legal exhaust for me?? live in qld

there is not a lot of room to run a twin so u will possiably have to run a 2.5" single 2 cats 1on each side then into a single large straight through mufflers

[EXHAUSTFIX]

Hi
I have a 4.5L patrol on dual fuel, what exhaust would i need to get it sounding a little better but not too much droning and a little extra performance? Would extractors have any benifit? How much would a system cost? thanks!

4.5s respond well to extractors and 2.5" system if made right they are not to loud
about $900 for something good

[EXHAUSTFIX]

Hi,i have a 2004 3.4v6 hilux, was wondering if you have seen anyone upgrade the exhaust system and if so was it worth it for power.

yes it is worth it on average u gain about %10-%12 increase

[EXHAUSTFIX]

howdy, is it possible to run a 1HZ turbo intercooled high psi, with a 3" into almost 4" stacks? behind the cab, no mufflers

that may be a bit loud or sound like a boat i think u may need 1 straight through muffler

[EXHAUSTFIX]

I'm picking up a 1995 3l TD surf on Tuesday.

Has stock exhaust on it atm..

Im wondering what the costs will be to wack a decent system on it... Not overly fussed about the noise, I've got extractors on my hilux now that are loud.

Probably run stock boost on it now (may change it later) so would be after a flexible option as far as size goes.

The surf guys seem to run straight through with a hotdog on the end..

Not sure what my options are

Oh... and since you are in croydon, you'll be doing the work (Bloke here at work has given you rave reviews as well)

if u are going to upgrade your boost at a later date you may want to concider running 3 " as u will need it later
1 straight through muffler is ample

[EXHAUSTFIX]

Currently building a 1.3l zook and its time to start to think about the exhaust.

Just wondering what size pipe to use ? I will be fitting extractors as well.

Its more a trailer queen that DD so noice dosent realy bother me that much, I am looking for the biggest power gains possible.

Thanks in advance, Nick

extractors and a 2" straight through system rember if you go to big on a small you will loose all your low down torque and then it wont pull the skin of a rice pudding

[EXHAUSTFIX]

hey exhaust doc,
got a turbo diesel 4.2 patrol with a high mount turbo. got my 3 inch exhaust fitted up today which was all good. however i was hoping for it to be all the way up to the turbo but instead they stuck with the standard turbo dynamics dump pipe which from memory is around 2 3/4 inch diameter, then it goes out to 3 from there. they told me they originally had planned on doing it all the way up there but decided it wouldn't make really much of a benifit cause they would have to squash the pipe for it to fit which would restrict.

what do you think? i'm willing to find someone else to do the dump pipe if you think its worth the effort. cheers, thanks for your time
josh

josh u realy need to find out what the outlet size of your turbo is if it is only 2.5 then it is ok but if its bigger u need to upgrade

[endo]

I'm picking up a 1995 3l TD surf on Tuesday.

Has stock exhaust on it atm..

Im wondering what the costs will be to wack a decent system on it... Not overly fussed about the noise, I've got extractors on my hilux now that are loud.

Probably run stock boost on it now (may change it later) so would be after a flexible option as far as size goes.

The surf guys seem to run straight through with a hotdog on the end..

Not sure what my options are

Oh... and since you are in croydon, you'll be doing the work (Bloke here at work has given you rave reviews as well)

if u are going to upgrade your boost at a later date you may want to concider running 3 " as u will need it later
1 straight through muffler is ample

Do you know what sort of $$$ we are talking about for this?

What sort of economy/power gains are to be had

Thanks heaps for the replies

Just found some info on the turbo specs if this helps with an idea of cost at all:

Manufacturer Toyota (Hitachi) Export Specification (Steel Turbines)
Type CT-12B (PN: ? (Front), ? (Rear)

Turbine size (Outlet diameter) 44mm
Turbine size (Inlet diameter) 52mm
Turbine blade count 9
Turbine material Steel
Turbine housing Inlet (ID)
Turbine housing Outlet (ID) 50.1mm
Turbine shaft Diameter 7.5mm

Turbine housing A/R

Compressor size (Inlet diameter) 39mm
Compressor size (Outlet diameter) 58mm
Compressor blade count 10
Compressor material Aluminium
Compressor housing Inlet (ID) 49.8mm
Compressor housing Outlet (ID)
Compressor housing A/R

*Wastegate size (ID) 30mm
Actuator spring rate 10 psi

Bearing ID 8.53mm
Bearing OD 13.55mm
Bearing width 9mm
Bearing material Bronze
Bearing oiling holes (per bearing)

[Z()LTAN]

howdy, is it possible to run a 1HZ turbo intercooled high psi, with a 3" into almost 4" stacks? behind the cab, no mufflers

that may be a bit loud or sound like a boat i think u may need 1 straight through muffler

that wasnt the question

i was asking if it would work, and not destroy the engine

[EXHAUSTFIX]

howdy, is it possible to run a 1HZ turbo intercooled high psi, with a 3" into almost 4" stacks? behind the cab, no mufflers

that may be a bit loud or sound like a boat i think u may need 1 straight through muffler

that wasnt the question

i was asking if it would work, and not destroy the engine

yes it will work and wont hurt the engine

[Mulisha]

hi

I have a Tb42 turbo now and i want it to make a fair bit of noise and sound good..

I'm going to have a 3" mandrel system it's on a GQ patrol short wheel base..

Guy at the exahust shop said a straight thru muffler will be quiter then a muffler with a plate or something inside it..

He suggested a race magnum for something ..

Just want your oppion what muffler to use for maxium flow for the turbo and as much noise as possible as it will be alot quiter anyway i think..

Thanks

Rick.